Tanzanite and Augelite Physical Properties

Tanzanite

Augelite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.352.70-2.75

1 7.18

1.5 Fracture

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect {010}, imperfect {100}

From the Greek for luster, for its pearly luster on the cleavage.

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Tanzanite and Augelite Chemical Formula

While comparing Tanzanite and Augelite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Tanzanite and Augelite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Tanzanite and Augelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.